Arm chair



FIG. 1 is a front perspective view of an arm chair embodying my new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a left side elevation thereof, the right side elevation being a mirror image;

FIG. 4 is a rear elevation thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a modified form of the arm chair of FIG. 1 shown in the shape of a rocking chair. 

The ornamental design for an arm chair, as shown and described. 